EXFO FTB-8510B Guia Del Usuario página 1177

REF OUT/Ref Output
Note: REF OUT is only available with the FTB-8130, FTB-8130NGFTB-8130NGE,
and 8140 models. The REF OUT signal is automatically enabled on the REF
OUT port (SMA connector) when the laser of the 10G/11.3G port is turned
ON.
Configuration
Divider Ratio: Allows the selection of the transmit test clock divider.
Choices are 16, 32, and 64. The following table shows the
corresponding output frequency in MHz.
For OC-192/STM-64/OTU2/OTU1e/OTU2e/OTU1f/OTU2f
Clock
OC-192/
divider
STM-64
16 622.08 MHz 669.33 MHz 690.57 MHz 693.48 MHz 704.38 MHz 707.35 MHz
32 311.04 MHz 334.66 MHz 345.29 MHz 346.74 MHz 352.19 MHz 353.68 MHz
64 155.52 MHz 167.33 MHz 172.64 MHz 173.37 MHz 176.10 MHz 176.84 MHz
For OC-768/STM-256/OTU3, there is no clock divider. The clock output
frequency is set as follow.
Output frequency for OC-768/STM-256
2488.32 MHz
Signal Analysis
Frequency (MHz): Displays the generated signal frequency in MHz.
Output Presence: Indicates the presence of a signal at the REF OUT
port (green) or not (gray).
SONET/SDH Application
Output frequency for
OTU2 OTU1e
Clock Synchronization
OTU2e OTU1f
Output frequency for OTU3
2688.65 MHz
System Tab
OTU2f
527